Abstract:
Die Erfindung betrifft ein Hochspannungsgerät (1), mit einem Kapselungsgehäuse (2) und mit wenigstens einer Durchführung (3) für wenigstens einen stromdurchflossenen Leiter (4) in das Kapselungsgehäuse (2) hinein und/oder aus dem Kapselungsgehäuse (2) heraus. Von der Durchführung (3) ist wenigstens eine Elektrode (5) auf freiem Potential umfasst. Die wenigs- tens eine Elektrode (5) auf freiem Potential erhöht die dielektrische Festigkeit in dem Hochspannungsgerät, insbesondere im Bereich der Durchführung (3).
Abstract:
Die Erfindung betrifft einen Hochspannungsleistungsschalter (1) und ein Verfahren zum Herstellen des Hochspannungsleistungsschalters (1), mit wenigstens einer Vakuumschaltröhre (2), welche durch wenigstens eine Halterung (5, 6) des Hochspannungsleistungsschalters (1) gelagert ist, wobei die Vakuumschaltröhre (2) wenigstes zwei Kontaktstücke (3, 4) umfasst, welche mit der wenigstens einen Halterung (5, 6) verbunden sind. Wenigstens ein Kontaktstück (3, 4) ist mit der wenigstens einen Halterung (5, 6) über eine Kontakthülse (9) verbunden.
Abstract:
The present invention relates to a method of operating circuit breakers with an intelligent electronic device (IED) wherein each phase of a multiphase power source is connected to a multiphase reactor through a circuit breaker. The method comprising, the IED: receiving measured values of voltage from a voltage transformer and current value from a current transformer for current flowing in each phase of windings of the multiphase coupled reactor; computing values of self-inductance and values of mutual inductance of the windings based on the measured values of current and voltage; estimating an instant of time for switching of a second circuit breaker on opening of a first circuit breaker based on the computed values of self inductance and mutual inductance of the windings and change in effect of mutual inductance in the windings of the multiphase reactor; and operating the second circuit breaker at the estimated instance of time.
Abstract:
본 발명은 가스절연개폐기의 도체 및 이 도체의 제조방법에 관한 것이다. 도체(10)의 골격을 형성하는 도체몸체(12)의 표면에는 에틸렌 테트라플루오르에틸렌을 주재료로 하는 절연층(16)이 형성된다. 상기 도체몸체(12)의 일측에는 또한 접촉통전부(14)가 구비되는데, 이에는 접촉저항이 낮은 물질이 도금되어 있다. 이와 같은 본 발명에 의하면 도체(10)의 표면에서 절연내력이 향상되어 전체 가스절연개폐기의 크기를 소형화할 수 있고, 접촉통전부(14)의 도금 작업이 간소화되는 이점이 있다.
Abstract:
La présente invention concerne un procédé de traitement d'un matériau à base de polyamide(s) comprenant des fibres et/ou charges de silice, par imprégnation par au moins un additif hydrophobe dans le CO 2 supercritique. Elle se rapporte encore à un matériau à base de polyamide(s) comprenant des fibres et/ou charges de silice et imprégné par au moins un additif hydrophobe, obtenu par un tel procédé, et à sa mise en œuvre comme composant électriquement isolant dans un appareil électrique, en particulier dans un disjoncteur.
Abstract:
The invention concerns a sensing device comprising: - a voltage sensor, the voltage sensor comprising a reference plate and a sensing plate, the reference plate and the sensing plate being ring-shaped, concentric and arranged at a distance from each other, an inward-facing surface of the reference plate facing an outward-facing surface of the sensing plate, each of the reference plate and the sensing plate being made of an electrically conductive material, the voltage sensor being adapted to output a voltage signal representative of a voltage value between the reference plate and the sensing plate; - a current sensor, the current sensor comprising a ring shaped Rogowski coil, the current sensor being adapted to output a current signal representative of a current flowing through a conductor encircled by the Rogowski coil.
Abstract:
A circuit interrupting device for use with an electrical power distribution system includes a housing containing a circuit interrupting device. A battery tube is positioned in the housing. A battery assembly is configured to be inserted into the battery tube. The battery assembly includes a assembly body having a first end and a second end. A battery is positioned in the assembly body. A cap assembly is connected to the assembly body and configured to connect the battery assembly to the battery tube. The cap assembly includes a torque-limiting device that prevents overtightening of the cap to the battery tube.
Abstract:
Es wird eine Vorrichtung (10) zur Messung eines Zustands eines elektrischen Schalters (1) beschrieben, wobei die Vorrichtung (10) dazu ausgebildet ist eine Spannung an Hauptkontakten (2a, 2b) des elektrischen Schalters (1) abzugreifen. Ferner werden ein elektrischer Schalter (1) mit der Vorrichtung (10) sowie ein Verfahren zur Messung eines Zustands eines elektrischen Schalters (1) beschrieben.
Abstract:
The invention relates to an embedded pole part for medium or high voltage use, with a vacuum interrupter which is embedded into an insulating resin (2), wherein a current and/or voltage sensor (3) with sensor housing (4) is integrated inside the insulating resin. To enhance the accuracy of voltage measurement, a metal grid (5) is implemented into the insulating resin, which is arranged between the sensor housing (4) of the current and/or voltage senso and the outer surface (6) of the insulating resin.
Abstract:
The present invention relates to a mechanical linkage circuit breaker, comprising a crossbeam and a pull rod, wherein the pull rod is disposed in the crossbeam. The mechanical linkage circuit breaker also comprises a guiding means. The guiding means comprises two load-bearing elements and two guide sleeves, wherein the load-bearing elements are fixed to the crossbeam and located on two sides of the pull rod. The guide sleeves surround the load-bearing elements, respectively, in a rotatable fashion and are spaced apart from the pull rod. Such a mechanical linkage circuit breaker has high reliability and stability.